1 /*- 2 * Copyright (c) 2001-2003, Shunsuke Akiyama <akiyama@FreeBSD.org>. 3 * Copyright (c) 1997, 1998, 1999, 2000 Bill Paul <wpaul@ee.columbia.edu>. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 /*- 28 * SPDX-License-Identifier: BSD-4-Clause AND BSD-2-Clause-FreeBSD 29 * 30 * Copyright (c) 1997, 1998, 1999, 2000 31 * Bill Paul <wpaul@ee.columbia.edu>. All rights reserved. 32 * 33 * Redistribution and use in source and binary forms, with or without 34 * modification, are permitted provided that the following conditions 35 * are met: 36 * 1. Redistributions of source code must retain the above copyright 37 * notice, this list of conditions and the following disclaimer. 38 * 2. Redistributions in binary form must reproduce the above copyright 39 * notice, this list of conditions and the following disclaimer in the 40 * documentation and/or other materials provided with the distribution. 41 * 3. All advertising materials mentioning features or use of this software 42 * must display the following acknowledgement: 43 * This product includes software developed by Bill Paul. 44 * 4. Neither the name of the author nor the names of any co-contributors 45 * may be used to endorse or promote products derived from this software 46 * without specific prior written permission. 47 * 48 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND 49 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 50 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 51 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD 52 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 53 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 54 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 55 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 56 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 57 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 58 * THE POSSIBILITY OF SUCH DAMAGE. 59 */ 60 61 #include <sys/cdefs.h> 62 __FBSDID("$FreeBSD$"); 63 64 /* 65 * RealTek RTL8150 USB to fast ethernet controller driver. 66 * Datasheet is available from 67 * ftp://ftp.realtek.com.tw/lancard/data_sheet/8150/. 68 */ 69 70 #include <sys/stdint.h> 71 #include <sys/stddef.h> 72 #include <sys/param.h> 73 #include <sys/queue.h> 74 #include <sys/types.h> 75 #include <sys/systm.h> 76 #include <sys/socket.h> 77 #include <sys/kernel.h> 78 #include <sys/bus.h> 79 #include <sys/module.h> 80 #include <sys/lock.h> 81 #include <sys/mutex.h> 82 #include <sys/condvar.h> 83 #include <sys/sysctl.h> 84 #include <sys/sx.h> 85 #include <sys/unistd.h> 86 #include <sys/callout.h> 87 #include <sys/malloc.h> 88 #include <sys/priv.h> 89 90 #include <net/if.h> 91 #include <net/if_var.h> 92 93 #include <dev/usb/usb.h> 94 #include <dev/usb/usbdi.h> 95 #include <dev/usb/usbdi_util.h> 96 #include "usbdevs.h" 97 98 #define USB_DEBUG_VAR rue_debug 99 #include <dev/usb/usb_debug.h> 100 #include <dev/usb/usb_process.h> 101 102 #include <dev/usb/net/usb_ethernet.h> 103 #include <dev/usb/net/if_ruereg.h> 104 105 #ifdef USB_DEBUG 106 static int rue_debug = 0; 107 108 static SYSCTL_NODE(_hw_usb, OID_AUTO, rue, CTLFLAG_RW, 0, "USB rue"); 109 SYSCTL_INT(_hw_usb_rue, OID_AUTO, debug, CTLFLAG_RWTUN, 110 &rue_debug, 0, "Debug level"); 111 #endif 112 113 /* 114 * Various supported device vendors/products. 115 */ 116 117 static const STRUCT_USB_HOST_ID rue_devs[] = { 118 {USB_VPI(USB_VENDOR_MELCO, USB_PRODUCT_MELCO_LUAKTX, 0)}, 119 {USB_VPI(USB_VENDOR_REALTEK, USB_PRODUCT_REALTEK_USBKR100, 0)}, 120 {USB_VPI(USB_VENDOR_OQO, USB_PRODUCT_OQO_ETHER01, 0)}, 121 }; 122 123 /* prototypes */ 124 125 static device_probe_t rue_probe; 126 static device_attach_t rue_attach; 127 static device_detach_t rue_detach; 128 129 static miibus_readreg_t rue_miibus_readreg; 130 static miibus_writereg_t rue_miibus_writereg; 131 static miibus_statchg_t rue_miibus_statchg; 132 133 static usb_callback_t rue_intr_callback; 134 static usb_callback_t rue_bulk_read_callback; 135 static usb_callback_t rue_bulk_write_callback; 136 137 static uether_fn_t rue_attach_post; 138 static uether_fn_t rue_init; 139 static uether_fn_t rue_stop; 140 static uether_fn_t rue_start; 141 static uether_fn_t rue_tick; 142 static uether_fn_t rue_setmulti; 143 static uether_fn_t rue_setpromisc; 144 145 static int rue_read_mem(struct rue_softc *, uint16_t, void *, int); 146 static int rue_write_mem(struct rue_softc *, uint16_t, void *, int); 147 static uint8_t rue_csr_read_1(struct rue_softc *, uint16_t); 148 static uint16_t rue_csr_read_2(struct rue_softc *, uint16_t); 149 static int rue_csr_write_1(struct rue_softc *, uint16_t, uint8_t); 150 static int rue_csr_write_2(struct rue_softc *, uint16_t, uint16_t); 151 static int rue_csr_write_4(struct rue_softc *, int, uint32_t); 152 153 static void rue_reset(struct rue_softc *); 154 static int rue_ifmedia_upd(struct ifnet *); 155 static void rue_ifmedia_sts(struct ifnet *, struct ifmediareq *); 156 157 static const struct usb_config rue_config[RUE_N_TRANSFER] = { 158 159 [RUE_BULK_DT_WR] = { 160 .type = UE_BULK, 161 .endpoint = UE_ADDR_ANY, 162 .direction = UE_DIR_OUT, 163 .bufsize = MCLBYTES, 164 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 165 .callback = rue_bulk_write_callback, 166 .timeout = 10000, /* 10 seconds */ 167 }, 168 169 [RUE_BULK_DT_RD] = { 170 .type = UE_BULK, 171 .endpoint = UE_ADDR_ANY, 172 .direction = UE_DIR_IN, 173 .bufsize = (MCLBYTES + 4), 174 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 175 .callback = rue_bulk_read_callback, 176 .timeout = 0, /* no timeout */ 177 }, 178 179 [RUE_INTR_DT_RD] = { 180 .type = UE_INTERRUPT, 181 .endpoint = UE_ADDR_ANY, 182 .direction = UE_DIR_IN, 183 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 184 .bufsize = 0, /* use wMaxPacketSize */ 185 .callback = rue_intr_callback, 186 }, 187 }; 188 189 static device_method_t rue_methods[] = { 190 /* Device interface */ 191 DEVMETHOD(device_probe, rue_probe), 192 DEVMETHOD(device_attach, rue_attach), 193 DEVMETHOD(device_detach, rue_detach), 194 195 /* MII interface */ 196 DEVMETHOD(miibus_readreg, rue_miibus_readreg), 197 DEVMETHOD(miibus_writereg, rue_miibus_writereg), 198 DEVMETHOD(miibus_statchg, rue_miibus_statchg), 199 200 DEVMETHOD_END 201 }; 202 203 static driver_t rue_driver = { 204 .name = "rue", 205 .methods = rue_methods, 206 .size = sizeof(struct rue_softc), 207 }; 208 209 static devclass_t rue_devclass; 210 211 DRIVER_MODULE_ORDERED(rue, uhub, rue_driver, rue_devclass, NULL, NULL, 212 SI_ORDER_ANY); 213 DRIVER_MODULE(miibus, rue, miibus_driver, miibus_devclass, NULL, NULL); 214 MODULE_DEPEND(rue, uether, 1, 1, 1); 215 MODULE_DEPEND(rue, usb, 1, 1, 1); 216 MODULE_DEPEND(rue, ether, 1, 1, 1); 217 MODULE_DEPEND(rue, miibus, 1, 1, 1); 218 MODULE_VERSION(rue, 1); 219 USB_PNP_HOST_INFO(rue_devs); 220 221 static const struct usb_ether_methods rue_ue_methods = { 222 .ue_attach_post = rue_attach_post, 223 .ue_start = rue_start, 224 .ue_init = rue_init, 225 .ue_stop = rue_stop, 226 .ue_tick = rue_tick, 227 .ue_setmulti = rue_setmulti, 228 .ue_setpromisc = rue_setpromisc, 229 .ue_mii_upd = rue_ifmedia_upd, 230 .ue_mii_sts = rue_ifmedia_sts, 231 }; 232 233 #define RUE_SETBIT(sc, reg, x) \ 234 rue_csr_write_1(sc, reg, rue_csr_read_1(sc, reg) | (x)) 235 236 #define RUE_CLRBIT(sc, reg, x) \ 237 rue_csr_write_1(sc, reg, rue_csr_read_1(sc, reg) & ~(x)) 238 239 static int 240 rue_read_mem(struct rue_softc *sc, uint16_t addr, void *buf, int len) 241 { 242 struct usb_device_request req; 243 244 req.bmRequestType = UT_READ_VENDOR_DEVICE; 245 req.bRequest = UR_SET_ADDRESS; 246 USETW(req.wValue, addr); 247 USETW(req.wIndex, 0); 248 USETW(req.wLength, len); 249 250 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 251 } 252 253 static int 254 rue_write_mem(struct rue_softc *sc, uint16_t addr, void *buf, int len) 255 { 256 struct usb_device_request req; 257 258 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 259 req.bRequest = UR_SET_ADDRESS; 260 USETW(req.wValue, addr); 261 USETW(req.wIndex, 0); 262 USETW(req.wLength, len); 263 264 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 265 } 266 267 static uint8_t 268 rue_csr_read_1(struct rue_softc *sc, uint16_t reg) 269 { 270 uint8_t val; 271 272 rue_read_mem(sc, reg, &val, 1); 273 return (val); 274 } 275 276 static uint16_t 277 rue_csr_read_2(struct rue_softc *sc, uint16_t reg) 278 { 279 uint8_t val[2]; 280 281 rue_read_mem(sc, reg, &val, 2); 282 return (UGETW(val)); 283 } 284 285 static int 286 rue_csr_write_1(struct rue_softc *sc, uint16_t reg, uint8_t val) 287 { 288 return (rue_write_mem(sc, reg, &val, 1)); 289 } 290 291 static int 292 rue_csr_write_2(struct rue_softc *sc, uint16_t reg, uint16_t val) 293 { 294 uint8_t temp[2]; 295 296 USETW(temp, val); 297 return (rue_write_mem(sc, reg, &temp, 2)); 298 } 299 300 static int 301 rue_csr_write_4(struct rue_softc *sc, int reg, uint32_t val) 302 { 303 uint8_t temp[4]; 304 305 USETDW(temp, val); 306 return (rue_write_mem(sc, reg, &temp, 4)); 307 } 308 309 static int 310 rue_miibus_readreg(device_t dev, int phy, int reg) 311 { 312 struct rue_softc *sc = device_get_softc(dev); 313 uint16_t rval; 314 uint16_t ruereg; 315 int locked; 316 317 if (phy != 0) /* RTL8150 supports PHY == 0, only */ 318 return (0); 319 320 locked = mtx_owned(&sc->sc_mtx); 321 if (!locked) 322 RUE_LOCK(sc); 323 324 switch (reg) { 325 case MII_BMCR: 326 ruereg = RUE_BMCR; 327 break; 328 case MII_BMSR: 329 ruereg = RUE_BMSR; 330 break; 331 case MII_ANAR: 332 ruereg = RUE_ANAR; 333 break; 334 case MII_ANER: 335 ruereg = RUE_AER; 336 break; 337 case MII_ANLPAR: 338 ruereg = RUE_ANLP; 339 break; 340 case MII_PHYIDR1: 341 case MII_PHYIDR2: 342 rval = 0; 343 goto done; 344 default: 345 if (RUE_REG_MIN <= reg && reg <= RUE_REG_MAX) { 346 rval = rue_csr_read_1(sc, reg); 347 goto done; 348 } 349 device_printf(sc->sc_ue.ue_dev, "bad phy register\n"); 350 rval = 0; 351 goto done; 352 } 353 354 rval = rue_csr_read_2(sc, ruereg); 355 done: 356 if (!locked) 357 RUE_UNLOCK(sc); 358 return (rval); 359 } 360 361 static int 362 rue_miibus_writereg(device_t dev, int phy, int reg, int data) 363 { 364 struct rue_softc *sc = device_get_softc(dev); 365 uint16_t ruereg; 366 int locked; 367 368 if (phy != 0) /* RTL8150 supports PHY == 0, only */ 369 return (0); 370 371 locked = mtx_owned(&sc->sc_mtx); 372 if (!locked) 373 RUE_LOCK(sc); 374 375 switch (reg) { 376 case MII_BMCR: 377 ruereg = RUE_BMCR; 378 break; 379 case MII_BMSR: 380 ruereg = RUE_BMSR; 381 break; 382 case MII_ANAR: 383 ruereg = RUE_ANAR; 384 break; 385 case MII_ANER: 386 ruereg = RUE_AER; 387 break; 388 case MII_ANLPAR: 389 ruereg = RUE_ANLP; 390 break; 391 case MII_PHYIDR1: 392 case MII_PHYIDR2: 393 goto done; 394 default: 395 if (RUE_REG_MIN <= reg && reg <= RUE_REG_MAX) { 396 rue_csr_write_1(sc, reg, data); 397 goto done; 398 } 399 device_printf(sc->sc_ue.ue_dev, " bad phy register\n"); 400 goto done; 401 } 402 rue_csr_write_2(sc, ruereg, data); 403 done: 404 if (!locked) 405 RUE_UNLOCK(sc); 406 return (0); 407 } 408 409 static void 410 rue_miibus_statchg(device_t dev) 411 { 412 /* 413 * When the code below is enabled the card starts doing weird 414 * things after link going from UP to DOWN and back UP. 415 * 416 * Looks like some of register writes below messes up PHY 417 * interface. 418 * 419 * No visible regressions were found after commenting this code 420 * out, so that disable it for good. 421 */ 422 #if 0 423 struct rue_softc *sc = device_get_softc(dev); 424 struct mii_data *mii = GET_MII(sc); 425 uint16_t bmcr; 426 int locked; 427 428 locked = mtx_owned(&sc->sc_mtx); 429 if (!locked) 430 RUE_LOCK(sc); 431 432 RUE_CLRBIT(sc, RUE_CR, (RUE_CR_RE | RUE_CR_TE)); 433 434 bmcr = rue_csr_read_2(sc, RUE_BMCR); 435 436 if (IFM_SUBTYPE(mii->mii_media_active) == IFM_100_TX) 437 bmcr |= RUE_BMCR_SPD_SET; 438 else 439 bmcr &= ~RUE_BMCR_SPD_SET; 440 441 if ((mii->mii_media_active & IFM_GMASK) == IFM_FDX) 442 bmcr |= RUE_BMCR_DUPLEX; 443 else 444 bmcr &= ~RUE_BMCR_DUPLEX; 445 446 rue_csr_write_2(sc, RUE_BMCR, bmcr); 447 448 RUE_SETBIT(sc, RUE_CR, (RUE_CR_RE | RUE_CR_TE)); 449 450 if (!locked) 451 RUE_UNLOCK(sc); 452 #endif 453 } 454 455 static void 456 rue_setpromisc(struct usb_ether *ue) 457 { 458 struct rue_softc *sc = uether_getsc(ue); 459 struct ifnet *ifp = uether_getifp(ue); 460 461 RUE_LOCK_ASSERT(sc, MA_OWNED); 462 463 /* If we want promiscuous mode, set the allframes bit. */ 464 if (ifp->if_flags & IFF_PROMISC) 465 RUE_SETBIT(sc, RUE_RCR, RUE_RCR_AAP); 466 else 467 RUE_CLRBIT(sc, RUE_RCR, RUE_RCR_AAP); 468 } 469 470 /* 471 * Program the 64-bit multicast hash filter. 472 */ 473 static void 474 rue_setmulti(struct usb_ether *ue) 475 { 476 struct rue_softc *sc = uether_getsc(ue); 477 struct ifnet *ifp = uether_getifp(ue); 478 uint16_t rxcfg; 479 int h = 0; 480 uint32_t hashes[2] = { 0, 0 }; 481 struct ifmultiaddr *ifma; 482 int mcnt = 0; 483 484 RUE_LOCK_ASSERT(sc, MA_OWNED); 485 486 rxcfg = rue_csr_read_2(sc, RUE_RCR); 487 488 if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) { 489 rxcfg |= (RUE_RCR_AAM | RUE_RCR_AAP); 490 rxcfg &= ~RUE_RCR_AM; 491 rue_csr_write_2(sc, RUE_RCR, rxcfg); 492 rue_csr_write_4(sc, RUE_MAR0, 0xFFFFFFFF); 493 rue_csr_write_4(sc, RUE_MAR4, 0xFFFFFFFF); 494 return; 495 } 496 497 /* first, zot all the existing hash bits */ 498 rue_csr_write_4(sc, RUE_MAR0, 0); 499 rue_csr_write_4(sc, RUE_MAR4, 0); 500 501 /* now program new ones */ 502 if_maddr_rlock(ifp); 503 CK_STAILQ_FOREACH (ifma, &ifp->if_multiaddrs, ifma_link) 504 { 505 if (ifma->ifma_addr->sa_family != AF_LINK) 506 continue; 507 h = ether_crc32_be(LLADDR((struct sockaddr_dl *) 508 ifma->ifma_addr), ETHER_ADDR_LEN) >> 26; 509 if (h < 32) 510 hashes[0] |= (1 << h); 511 else 512 hashes[1] |= (1 << (h - 32)); 513 mcnt++; 514 } 515 if_maddr_runlock(ifp); 516 517 if (mcnt) 518 rxcfg |= RUE_RCR_AM; 519 else 520 rxcfg &= ~RUE_RCR_AM; 521 522 rxcfg &= ~(RUE_RCR_AAM | RUE_RCR_AAP); 523 524 rue_csr_write_2(sc, RUE_RCR, rxcfg); 525 rue_csr_write_4(sc, RUE_MAR0, hashes[0]); 526 rue_csr_write_4(sc, RUE_MAR4, hashes[1]); 527 } 528 529 static void 530 rue_reset(struct rue_softc *sc) 531 { 532 int i; 533 534 rue_csr_write_1(sc, RUE_CR, RUE_CR_SOFT_RST); 535 536 for (i = 0; i != RUE_TIMEOUT; i++) { 537 if (uether_pause(&sc->sc_ue, hz / 1000)) 538 break; 539 if (!(rue_csr_read_1(sc, RUE_CR) & RUE_CR_SOFT_RST)) 540 break; 541 } 542 if (i == RUE_TIMEOUT) 543 device_printf(sc->sc_ue.ue_dev, "reset never completed\n"); 544 545 uether_pause(&sc->sc_ue, hz / 100); 546 } 547 548 static void 549 rue_attach_post(struct usb_ether *ue) 550 { 551 struct rue_softc *sc = uether_getsc(ue); 552 553 /* reset the adapter */ 554 rue_reset(sc); 555 556 /* get station address from the EEPROM */ 557 rue_read_mem(sc, RUE_EEPROM_IDR0, ue->ue_eaddr, ETHER_ADDR_LEN); 558 } 559 560 /* 561 * Probe for a RTL8150 chip. 562 */ 563 static int 564 rue_probe(device_t dev) 565 { 566 struct usb_attach_arg *uaa = device_get_ivars(dev); 567 568 if (uaa->usb_mode != USB_MODE_HOST) 569 return (ENXIO); 570 if (uaa->info.bConfigIndex != RUE_CONFIG_IDX) 571 return (ENXIO); 572 if (uaa->info.bIfaceIndex != RUE_IFACE_IDX) 573 return (ENXIO); 574 575 return (usbd_lookup_id_by_uaa(rue_devs, sizeof(rue_devs), uaa)); 576 } 577 578 /* 579 * Attach the interface. Allocate softc structures, do ifmedia 580 * setup and ethernet/BPF attach. 581 */ 582 static int 583 rue_attach(device_t dev) 584 { 585 struct usb_attach_arg *uaa = device_get_ivars(dev); 586 struct rue_softc *sc = device_get_softc(dev); 587 struct usb_ether *ue = &sc->sc_ue; 588 uint8_t iface_index; 589 int error; 590 591 device_set_usb_desc(dev); 592 mtx_init(&sc->sc_mtx, device_get_nameunit(dev), NULL, MTX_DEF); 593 594 iface_index = RUE_IFACE_IDX; 595 error = usbd_transfer_setup(uaa->device, &iface_index, 596 sc->sc_xfer, rue_config, RUE_N_TRANSFER, 597 sc, &sc->sc_mtx); 598 if (error) { 599 device_printf(dev, "allocating USB transfers failed\n"); 600 goto detach; 601 } 602 603 ue->ue_sc = sc; 604 ue->ue_dev = dev; 605 ue->ue_udev = uaa->device; 606 ue->ue_mtx = &sc->sc_mtx; 607 ue->ue_methods = &rue_ue_methods; 608 609 error = uether_ifattach(ue); 610 if (error) { 611 device_printf(dev, "could not attach interface\n"); 612 goto detach; 613 } 614 return (0); /* success */ 615 616 detach: 617 rue_detach(dev); 618 return (ENXIO); /* failure */ 619 } 620 621 static int 622 rue_detach(device_t dev) 623 { 624 struct rue_softc *sc = device_get_softc(dev); 625 struct usb_ether *ue = &sc->sc_ue; 626 627 usbd_transfer_unsetup(sc->sc_xfer, RUE_N_TRANSFER); 628 uether_ifdetach(ue); 629 mtx_destroy(&sc->sc_mtx); 630 631 return (0); 632 } 633 634 static void 635 rue_intr_callback(struct usb_xfer *xfer, usb_error_t error) 636 { 637 struct rue_softc *sc = usbd_xfer_softc(xfer); 638 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 639 struct rue_intrpkt pkt; 640 struct usb_page_cache *pc; 641 int actlen; 642 643 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 644 645 switch (USB_GET_STATE(xfer)) { 646 case USB_ST_TRANSFERRED: 647 648 if (ifp && (ifp->if_drv_flags & IFF_DRV_RUNNING) && 649 actlen >= (int)sizeof(pkt)) { 650 651 pc = usbd_xfer_get_frame(xfer, 0); 652 usbd_copy_out(pc, 0, &pkt, sizeof(pkt)); 653 654 if_inc_counter(ifp, IFCOUNTER_IERRORS, pkt.rue_rxlost_cnt); 655 if_inc_counter(ifp, IFCOUNTER_IERRORS, pkt.rue_crcerr_cnt); 656 if_inc_counter(ifp, IFCOUNTER_COLLISIONS, pkt.rue_col_cnt); 657 } 658 /* FALLTHROUGH */ 659 case USB_ST_SETUP: 660 tr_setup: 661 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 662 usbd_transfer_submit(xfer); 663 return; 664 665 default: /* Error */ 666 if (error != USB_ERR_CANCELLED) { 667 /* try to clear stall first */ 668 usbd_xfer_set_stall(xfer); 669 goto tr_setup; 670 } 671 return; 672 } 673 } 674 675 static void 676 rue_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 677 { 678 struct rue_softc *sc = usbd_xfer_softc(xfer); 679 struct usb_ether *ue = &sc->sc_ue; 680 struct ifnet *ifp = uether_getifp(ue); 681 struct usb_page_cache *pc; 682 uint16_t status; 683 int actlen; 684 685 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 686 687 switch (USB_GET_STATE(xfer)) { 688 case USB_ST_TRANSFERRED: 689 690 if (actlen < 4) { 691 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 692 goto tr_setup; 693 } 694 pc = usbd_xfer_get_frame(xfer, 0); 695 usbd_copy_out(pc, actlen - 4, &status, sizeof(status)); 696 actlen -= 4; 697 698 /* check receive packet was valid or not */ 699 status = le16toh(status); 700 if ((status & RUE_RXSTAT_VALID) == 0) { 701 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 702 goto tr_setup; 703 } 704 uether_rxbuf(ue, pc, 0, actlen); 705 /* FALLTHROUGH */ 706 case USB_ST_SETUP: 707 tr_setup: 708 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 709 usbd_transfer_submit(xfer); 710 uether_rxflush(ue); 711 return; 712 713 default: /* Error */ 714 DPRINTF("bulk read error, %s\n", 715 usbd_errstr(error)); 716 717 if (error != USB_ERR_CANCELLED) { 718 /* try to clear stall first */ 719 usbd_xfer_set_stall(xfer); 720 goto tr_setup; 721 } 722 return; 723 } 724 } 725 726 static void 727 rue_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 728 { 729 struct rue_softc *sc = usbd_xfer_softc(xfer); 730 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 731 struct usb_page_cache *pc; 732 struct mbuf *m; 733 int temp_len; 734 735 switch (USB_GET_STATE(xfer)) { 736 case USB_ST_TRANSFERRED: 737 DPRINTFN(11, "transfer complete\n"); 738 if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1); 739 740 /* FALLTHROUGH */ 741 case USB_ST_SETUP: 742 tr_setup: 743 if ((sc->sc_flags & RUE_FLAG_LINK) == 0) { 744 /* 745 * don't send anything if there is no link ! 746 */ 747 return; 748 } 749 IFQ_DRV_DEQUEUE(&ifp->if_snd, m); 750 751 if (m == NULL) 752 return; 753 if (m->m_pkthdr.len > MCLBYTES) 754 m->m_pkthdr.len = MCLBYTES; 755 temp_len = m->m_pkthdr.len; 756 757 pc = usbd_xfer_get_frame(xfer, 0); 758 usbd_m_copy_in(pc, 0, m, 0, m->m_pkthdr.len); 759 760 /* 761 * This is an undocumented behavior. 762 * RTL8150 chip doesn't send frame length smaller than 763 * RUE_MIN_FRAMELEN (60) byte packet. 764 */ 765 if (temp_len < RUE_MIN_FRAMELEN) { 766 usbd_frame_zero(pc, temp_len, 767 RUE_MIN_FRAMELEN - temp_len); 768 temp_len = RUE_MIN_FRAMELEN; 769 } 770 usbd_xfer_set_frame_len(xfer, 0, temp_len); 771 772 /* 773 * if there's a BPF listener, bounce a copy 774 * of this frame to him: 775 */ 776 BPF_MTAP(ifp, m); 777 778 m_freem(m); 779 780 usbd_transfer_submit(xfer); 781 782 return; 783 784 default: /* Error */ 785 DPRINTFN(11, "transfer error, %s\n", 786 usbd_errstr(error)); 787 788 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 789 790 if (error != USB_ERR_CANCELLED) { 791 /* try to clear stall first */ 792 usbd_xfer_set_stall(xfer); 793 goto tr_setup; 794 } 795 return; 796 } 797 } 798 799 static void 800 rue_tick(struct usb_ether *ue) 801 { 802 struct rue_softc *sc = uether_getsc(ue); 803 struct mii_data *mii = GET_MII(sc); 804 805 RUE_LOCK_ASSERT(sc, MA_OWNED); 806 807 mii_tick(mii); 808 if ((sc->sc_flags & RUE_FLAG_LINK) == 0 809 && mii->mii_media_status & IFM_ACTIVE && 810 IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) { 811 sc->sc_flags |= RUE_FLAG_LINK; 812 rue_start(ue); 813 } 814 } 815 816 static void 817 rue_start(struct usb_ether *ue) 818 { 819 struct rue_softc *sc = uether_getsc(ue); 820 821 /* 822 * start the USB transfers, if not already started: 823 */ 824 usbd_transfer_start(sc->sc_xfer[RUE_INTR_DT_RD]); 825 usbd_transfer_start(sc->sc_xfer[RUE_BULK_DT_RD]); 826 usbd_transfer_start(sc->sc_xfer[RUE_BULK_DT_WR]); 827 } 828 829 static void 830 rue_init(struct usb_ether *ue) 831 { 832 struct rue_softc *sc = uether_getsc(ue); 833 struct ifnet *ifp = uether_getifp(ue); 834 835 RUE_LOCK_ASSERT(sc, MA_OWNED); 836 837 /* 838 * Cancel pending I/O 839 */ 840 rue_reset(sc); 841 842 /* Set MAC address */ 843 rue_write_mem(sc, RUE_IDR0, IF_LLADDR(ifp), ETHER_ADDR_LEN); 844 845 rue_stop(ue); 846 847 /* 848 * Set the initial TX and RX configuration. 849 */ 850 rue_csr_write_1(sc, RUE_TCR, RUE_TCR_CONFIG); 851 rue_csr_write_2(sc, RUE_RCR, RUE_RCR_CONFIG|RUE_RCR_AB); 852 853 /* Load the multicast filter */ 854 rue_setpromisc(ue); 855 /* Load the multicast filter. */ 856 rue_setmulti(ue); 857 858 /* Enable RX and TX */ 859 rue_csr_write_1(sc, RUE_CR, (RUE_CR_TE | RUE_CR_RE | RUE_CR_EP3CLREN)); 860 861 usbd_xfer_set_stall(sc->sc_xfer[RUE_BULK_DT_WR]); 862 863 ifp->if_drv_flags |= IFF_DRV_RUNNING; 864 rue_start(ue); 865 } 866 867 /* 868 * Set media options. 869 */ 870 static int 871 rue_ifmedia_upd(struct ifnet *ifp) 872 { 873 struct rue_softc *sc = ifp->if_softc; 874 struct mii_data *mii = GET_MII(sc); 875 struct mii_softc *miisc; 876 int error; 877 878 RUE_LOCK_ASSERT(sc, MA_OWNED); 879 880 sc->sc_flags &= ~RUE_FLAG_LINK; 881 LIST_FOREACH(miisc, &mii->mii_phys, mii_list) 882 PHY_RESET(miisc); 883 error = mii_mediachg(mii); 884 return (error); 885 } 886 887 /* 888 * Report current media status. 889 */ 890 static void 891 rue_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr) 892 { 893 struct rue_softc *sc = ifp->if_softc; 894 struct mii_data *mii = GET_MII(sc); 895 896 RUE_LOCK(sc); 897 mii_pollstat(mii); 898 ifmr->ifm_active = mii->mii_media_active; 899 ifmr->ifm_status = mii->mii_media_status; 900 RUE_UNLOCK(sc); 901 } 902 903 static void 904 rue_stop(struct usb_ether *ue) 905 { 906 struct rue_softc *sc = uether_getsc(ue); 907 struct ifnet *ifp = uether_getifp(ue); 908 909 RUE_LOCK_ASSERT(sc, MA_OWNED); 910 911 ifp->if_drv_flags &= ~IFF_DRV_RUNNING; 912 sc->sc_flags &= ~RUE_FLAG_LINK; 913 914 /* 915 * stop all the transfers, if not already stopped: 916 */ 917 usbd_transfer_stop(sc->sc_xfer[RUE_BULK_DT_WR]); 918 usbd_transfer_stop(sc->sc_xfer[RUE_BULK_DT_RD]); 919 usbd_transfer_stop(sc->sc_xfer[RUE_INTR_DT_RD]); 920 921 rue_csr_write_1(sc, RUE_CR, 0x00); 922 923 rue_reset(sc); 924 } 925